Abstract

In this paper, a real-valued genetic algorithm (GA) is implemented to construct Radar Absorbing Materials RAM by searching the characteristics (thickness T, permittivityε, permeabilityμ and conductivity σ) which ensure the minimization of the reflectivity on a frequency band. The genetic algorithms used the reflectivity in fitness function to direct the research to the best configuration. Here in, we dealt with the narrowband absorbers (Salisbury screen and circuit “Analog” RAM) and the broadband absorbers (Jaumann screen). Numerical results are presented and showed the efficiency of the methods.